Big Creek-Hurricane Creek T- 7 Reservoir Report
Last Updated: December 18, 2025
Big Creek-Hurricane Creek T-7, located in Carroll, Missouri, was completed in 1995 for the primary purpose of flood risk reduction along TR-Big Creek.
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Summary
This earth dam stands at a height of 31 feet and has a hydraulic height of 28 feet, with a total length of 450 feet. With a storage capacity of 130 acre-feet and a drainage area of 300.8 square miles, the dam plays a crucial role in mitigating flood hazards in the region.
Managed by the USDA NRCS, this structure has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment. While it does not have an Emergency Action Plan (EAP) in place, the dam is considered to pose a moderate risk. With no associated locks or outlet gates, the spillway, which is uncontrolled and 30 feet wide, serves as the primary means of managing excess water during high flow events.
Despite not being regulated by the state and lacking inspection and enforcement mechanisms, Big Creek-Hurricane Creek T-7 continues to play a vital role in protecting the local community from the impacts of flooding. As climate change intensifies the frequency and severity of extreme weather events, structures like this will become increasingly important in safeguarding water resources and communities against the growing threats of climate-related disasters.
Year Completed |
1995 |
Dam Length |
450 |
Dam Height |
31 |
River Or Stream |
TR-BIG CREEK |
Primary Dam Type |
Earth |
Surface Area |
7.2 |
Hydraulic Height |
28 |
Drainage Area |
300.8 |
Nid Storage |
130 |
Structural Height |
29 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
31 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Grand River At Chillicothe
|
361cfs |
Grand River Near Sumner
|
223cfs |
Shoal Creek Near Braymer Mo
|
0cfs |
Wakenda Creek At Carrollton
|
39cfs |
Missouri River At Waverly
|
27800cfs |
Locust Creek Near Linneus
|
31cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Big Creek-Hurricane Creek T- 7